Six long articles on the parts of lighting that are genuinely hard: efficacy and colour, the arithmetic of savings, dimming compatibility and why a 25,000-hour lamp sometimes lasts eighteen months.
11 February 2026 · 14 min read
Three technologies, thirty years of argument. Here is what actually separates them on efficacy, colour, lifetime and total cost — with the numbers worked through.
Read the article : LED vs CFL vs Incandescent: The Complete Comparison
24 March 2026 · 12 min read
Everything printed on a bulb carton, in the order it matters — and the three numbers most people read first that tell them the least.
Read the article : How to Read a Lighting Facts Label: Lumens, Kelvin and CRI
15 April 2026 · 13 min read
Most lighting savings estimates are wrong in the same four ways. Here is the arithmetic done properly, on a real house and a real small office.
Read the article : The Real Cost of Lighting: Calculating Your LED Savings
20 May 2026 · 12 min read
Warm or cool is not a matter of taste alone — brightness, time of day and what you are looking at all change the right answer. A room-by-room specification.
Read the article : Colour Temperature by Room: Choosing Between 2700K and 5000K
18 June 2026 · 13 min read
A 25,000-hour lamp that dies in eighteen months did not fail as an LED. Five real causes, in the order our returns data puts them.
Read the article : Why LED Bulbs Fail Early — and How to Make Yours Last
22 July 2026 · 14 min read
Flicker, buzz, drop-out and dead travel at the bottom of the dial. A systematic diagnosis, from the dimmer type to the driver topology.
Read the article : Dimmers, Drivers and Flicker: Getting LED Dimming RightNo articles in that category yet.
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